Jones Merchandise uses a perpetual inventory system. It is a publicly traded company. On February 19 it sold $8,000 of motor parts to Vivak Candles on account. Jones statistics indicate 5% of its sales will result in returns. Jones's cost of inventory on motor parts is 50% of the sales price. Jones's entry to record the credit sale will be: Select one: O a. DR Cost of Goods Sold $4,000 DR Estimated Inventory Returns $4,000; CR Sales $7,600 CR Refund Liability $400 O b. DR Cost of Goods Sold $4,000; CR Sales $3,600 CR Inventory Liability $400 O c. DR Accounts Receivable $8,000; CR Sales $7,600 CR Refund Liability $400 O d. DR Accounts Receivable $8,000; CR Sales $$8,000 O e. DR Inventory $8,000; CR Sales $7,600 CR Refund Liability $400